Medical sheath



FIG. 1 is a cross-sectional view of the medical sheath taken long line 1-1 of FIG. 5, showing my new design;

FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is a cross sectional view taken along line 3-3 of FIG. 1;

FIG. 4 is a perspective view;

FIG. 5 is a top view;

FIG. 6 is a side view; and,

FIG. 7 is a bottom view. 

CLAIM The ornamental design for a medical sheath, as shown and described. 